320173960

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1\times {\mathrm{313}}^1$

素因数の和:670

約数の個数: 64

約数和(自身を含む): 732499200

約数和(自身を除く): 412325240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 239, 313, 428, 478, 535, 626, 856, 956, 1070, 1195, 1252, 1565, 1912, 2140, 2390, 2504, 3130, 4280, 4780, 6260, 9560, 12520, 25573, 33491, 51146, 66982, 74807, 102292, 127865, 133964, 149614, 167455, 204584, 255730, 267928, 299228, 334910, 374035, 511460, 598456, 669820, 748070, 1022920, 1339640, 1496140, 2992280, 8004349, 16008698, 32017396, 40021745, 64034792, 80043490, 160086980, 320173960]

約数ペア:

[(1, 320173960), (2, 160086980), (4, 80043490), (5, 64034792), (8, 40021745), (10, 32017396), (20, 16008698), (40, 8004349), (107, 2992280), (214, 1496140), (239, 1339640), (313, 1022920), (428, 748070), (478, 669820), (535, 598456), (626, 511460), (856, 374035), (956, 334910), (1070, 299228), (1195, 267928), (1252, 255730), (1565, 204584), (1912, 167455), (2140, 149614), (2390, 133964), (2504, 127865), (3130, 102292), (4280, 74807), (4780, 66982), (6260, 51146), (9560, 33491), (12520, 25573)]